| abstract |
A resin particle is provided, in which a mass loss rate after being immersed in distilled water at 70°C for 14 days is less than 10%, and in which a mass loss rate after being left in a compost at 55°C for 14 days is 90% or more, the compost having nitrogen of 1.3 mass%, phosphoric acid of 0.5 mass%, and potassium of 2.9 mass% with respect to a total amount of the compost, and the compost having a carbon-nitrogen ratio (C/N ratio) of 25. |